tcg/optimize: Re-enable sign-mask optimizations

All instances of s_mask have been converted to the new
representation.  We can now re-enable usage.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

diff --git a/tcg/optimize.c b/tcg/optimize.c
index 98b41975afbf670cdfaf134a29c627df4fe54e8d..182be7e63c3237d5f17e6360b632a94753572182 100644 (file)
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -1797,7 +1797,7 @@ static bool fold_exts(OptContext *ctx, TCGOp *op)
         g_assert_not_reached();
     }
 
-    if (0 && !type_change && fold_affected_mask(ctx, op, s_mask & ~s_mask_old)) {
+    if (!type_change && fold_affected_mask(ctx, op, s_mask & ~s_mask_old)) {
         return true;
     }
 
@@ -2506,7 +2506,7 @@ static bool fold_sextract(OptContext *ctx, TCGOp *op)
     s_mask = s_mask_old >> pos;
     s_mask |= -1ull << (len - 1);
 
-    if (0 && pos == 0 && fold_affected_mask(ctx, op, s_mask & ~s_mask_old)) {
+    if (pos == 0 && fold_affected_mask(ctx, op, s_mask & ~s_mask_old)) {
         return true;
     }